The most precise measurement of the expansion rate ever made suggests an unknown force may be affecting the universe.

In the grand puzzle of the cosmos, one question continues to defy easy answers: how fast is the universe expanding? Astronomers have tried two main methods to figure it out, but their numbers don’t ...

The local universe may be expanding more slowly than previously thought, scientists have found. The discovery, made in two separate pieces of research, could relieve one of the most troubling ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's Hubble Space Telescope shows off an infrared view of the spiral galaxy M51, dubbed the Whirlpool Galaxy. In simplest terms, ...

The most precise measurement yet of how fast the Universe is expanding shows we have a real and serious problem on our hands.

A comprehensive new study combines decades of research to reveal that we're missing an essential component in our understanding of how the universe works.

Scientists have known for decades that the universe is expanding, but research in the past few years has shaken up calculations on the speed of growth -- raising tricky questions about theories of the ...

The universe is expanding faster than previously thought, according to a team of astronomers using the Hubble Telescope. How much faster? Five to nine percent faster. Initially the expansion of the ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda Cold Dark Matter, or ΛCDM, it weaves together dark energy, dark matter, and ...

The plot represents the new model with the x-axis and the y-axis showing the minimum sizes of collapsing and expanding regions that can impact cosmological measurements. The contours are independent ...